<template>
  <div class="ratingselect">
    <div class="rating-type border-1px">
      <span @click="select(2,$event)" class="block positive" :class="{'active':selectType===2}">{{desc.all}}<span class="count">{{ratings.length}}</span></span>
      <span @click="select(0,$event)" class="block positive" :class="{'active':selectType===0}">{{desc.positive}}<span class="count">{{positives.length}}</span></span>
      <span @click="select(1,$event)" class="block negative" :class="{'active':selectType===1}">{{desc.negative}}<span class="count">{{negatives.length}}</span></span>
    </div>
    <div @click="toogleContent" class="switch" :class="{'on':onlyContent}">
      <span class="icon-check_circle"></span>
      <span class="text">只看内容评价</span>
    </div>
  </div>
</template>

<script>

const POSITIVE = 0
const NEGATIVE = 1
const ALL = 2

export default {
  props: {
    ratings: {
      type: Array,
      default () {
        return []
      }
    },
    selectType: {
      type: Number,
      default: ALL
    },
    onlyContent: {
      type: Boolean,
      default: false
    },
    desc: {
      type: Object,
      default () {
        return {
          all: '全部',
          positive: '满意',
          negative: '不满意'
        }
      }
    },
    ratingtype: {
      type: Function
    },
    contenttoggle: {
      type: Function
    }
  },
  methods: {
    select (type, event) {
      if (!event._constructed) {
        return
      }
      // this.selectType = type
      // this.$emit('ratingtype-select', type)
      this.$props.ratingtype(type)
    },
    toogleContent (envent) {
      if (!envent._constructed) {
        return
      }
      // this.onlyContent = !this.onlyContent
      // this.$emit('content-toggle', !this.onlyContent)
      this.$props.contenttoggle(!this.onlyContent)
    }
  },
  computed: {
    positives () {
      // filter() 方法创建一个新的数组，新数组中的元素是通过检查指定数组中符合条件的所有元素
      return this.ratings.filter((rating) => {
        return rating.rateType === POSITIVE
      })
    },
    negatives () {
      return this.ratings.filter((rating) => {
        return rating.rateType === NEGATIVE
      })
    }
  }
}
</script>

<style scoped lang="stylus">
  @import "../../common/stylus/mixin.styl"
  .ratingselect
    .rating-type
      padding 18px 0
      margin: 0 18px
      border-1px(rgba(7,17,27,.1))
      font-size 0
      .block
        display inline-block
        padding 8px 12px
        margin-right: 8px
        line-height: 16px
        border-radius 1px
        font-size 12px
        color rgb(77,85,93)
        &.active
          color #fff
         .count
          margin-left: 2px
          font-size 8px
        &.positive
          background rgba(0,160,220,.2)
          &.active
            background rgb(0,160,220)
        &.negative
          background rgba(77,85,93,.2)
          &.active
            background rgb(77,85,93)
    .switch
      padding 12px 18px
      line-height 24px
      border-bottom 1px solid rgba(7,17,27,.1)
      color rgb(147,153,159)
      font-size 0
      &.on
        .icon-check_circle
          color #00c850
      .icon-check_circle
        display inline-block
        vertical-align: top
        margin-right: 4px
        font-size 24px
      .text
        display inline-block
        vertical-align: top
        font-size 12px
</style>
